University of Cape Town


Small Mammals Research Group


This group is co-ordinated by Dr Dave Jacobs and Dr Gary Bronner

Bat research by Dr Jacobs

Predicting the ecology of an organism from its morphology not only requires the assumption that form determines function, but also that small differences in morphology suggest small differences in function. If valid, it allows the formulation of predictive models of ecological behaviour based on morphology. This assumption appears to be expecially valid for bats. Bat research in the department thus focuses on the ecomorphology of bats i.e. on the exploration of the relationship between the morphology and ecology of bats. This includes, for example, studies of evolutionary arms races between bats and moths, as well as studies comparing the relative influences of echolocation call design and wing morphology on the diets and foraging habitats of bats. Data generated in this way are also used to augment research at the community level. The objective of community level research undertaken in the department is to increase our understanding of the structure and function of bat communities. This research thus includes collecting data on the morphology, echolocation, diet and habitat of the species making up various communities, as well as studies on population genetics.


Small Mammal research by Dr Bronner

Golden mole research

Research in the department also focuses on the systematic status and phylogenetic relationships of golden moles (Chrysochloridae), the only mammal family with a southern African center of diversity. Of the 21 described species, 18 occur only in southern Africa, with 15 endemic to South Africa. Eleven species are included in IUCN/SSC threatened categories, and little information exists on the ecology, habitat requirements and reproduction of most taxa owing to their rarity, trap-shyness and cryptic habits. The Chrysochloridae is thus a truly southern African flagship biodiversity, and one that is in urgent need of further taxonomic study to facilitate effective conservation strategies. A variety of techniques, ranging from traditional and geometric morphometrics, molecular studies and karyology are used to study both infraspecific variation and supraspecific relationships. Data suites are integrated to derive and refine a polythetic classification that will provide a stable and consilient foundation for conservation planning. Habitat and ecological data are also recorded during field trips to enhance our understanding of the natural history of these poorly-known mammals.

Small Mammal research by Dr O'Riain

Small mammal research